A high-speed CNC paper corner protection machine

Abstract

The present invention discloses a high-speed CNC paper corner protector, which belongs to the field of paper corner protector production, including: a support frame, a U-shaped paper corner protector; and also including: a flipping member, which is arranged on the support frame, and the U-shaped paper corner protector just falls on the flipping member after being cut, so as to flip the U-shaped paper corner protector 90 degrees by flipping left and right, so that two adjacent U-shaped paper corner protectors fall on the first conveyor belt and the second conveyor belt in sequence for transmission. The present invention is provided with a flipping member, after the U-shaped paper corner protector is cut, the U-shaped paper corner protector falls on the flipping member, and the flipping member is driven by the first driving member to flip left and right, so that the cut U-shaped paper corner protector is flipped left and right to the first conveyor belt and the second conveyor belt in sequence, and the direction of the U-shaped paper corner protector is changed at the same time, so that the openings of the two U-shaped paper corner protectors on the first conveyor belt and the second conveyor belt are opposite, so as to facilitate the two U-shaped paper corner protectors to fit together.

Description

Technical Field

[0001] The invention relates to the field of paper corner protector production, and more specifically to a high-speed numerically controlled paper corner protector machine. Background Art

[0002] Paper corner protector, also known as edge board, is one of the most popular packaging products in the world, used to replace wood packaging and other bulky packaging methods. It has the characteristics of low price, light weight, strong, and environmental protection. It is also called paper corner protector or corner protector board, edge board, corner paper, paper angle steel, which is made of tube paper and kraft paper by a set of corner protector machines. The two ends are smooth and flat, without obvious burrs, and perpendicular to each other. It can replace wood and is 100% recycled and reused. It is one of the ideal new green packaging materials. It mainly has V-shaped and U-shaped.

[0003] When producing paper corner protectors, the formed paper corner protectors need to be cut into paper corner protectors of specified lengths, and then the paper corner protectors are transported one by one to the discharging mechanism through a conveyor belt, and the workers pack them to complete the discharging. Because the existing U-shaped paper corner protector machine cannot stack multiple V-shaped paper corner protectors together for convenient packaging when discharging like V-shaped paper corner protectors; therefore, when the U-shaped paper corner protectors are discharged, workers usually cross and overlap two U-shaped paper corner protectors on the side, and then pack the two U-shaped paper corner protectors together with rubber bands, which is more troublesome.

[0004] In view of this, in order to solve the above-mentioned deficiencies, the present invention improves and optimizes the paper corner protector discharging in the prior art, and develops a high-speed CNC paper corner protector machine. Summary of the invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a high-speed CNC paper corner protection machine that can achieve.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A high-speed CNC paper corner protector, comprising: a support frame, a U-shaped paper corner protector; and:

[0008] A cutting part connected to the support frame to cut the U-shaped paper corner protector into a specified length;

[0009] A turning groove is provided on the cutting portion;

[0010] A first conveyor belt is arranged on the support frame to convey the cut U-shaped paper corner protector to the next process;

[0011] A second conveyor belt, disposed on the support frame, and conveying the U-shaped paper corner protector in sequence with the first conveyor belt;

[0012] A flipping member is arranged on the support frame, and the U-shaped paper corner protector just falls on the flipping member after being cut, so that the U-shaped paper corner protector is flipped 90 degrees by flipping left and right, so that two adjacent U-shaped paper corner protectors fall on the first conveyor belt and the second conveyor belt in sequence for transmission respectively;

[0013] A first driving member is disposed in the flip groove and is connected with the flip member to drive the flip member to flip left and right;

[0014] A pushing part is arranged on the supporting frame and pushes the U-shaped paper corner protectors on the first conveyor belt onto the second conveyor belt so as to cross and overlap the two U-shaped paper corner protectors;

[0015] A reciprocating driving member is disposed on the pushing portion to drive the pushing portion to reciprocate;

[0016] A limiting part, arranged on the pushing part, cooperates with the reciprocating driving member to prevent one of the U-shaped paper corner guards from being directly transferred to the next process;

[0017] The bundling part is arranged on a side of the second conveyor belt away from the cutting part to bundle the two U-shaped paper corner protectors that are crossed and overlapped.

[0018] Furthermore, the flip member comprises:

[0019] a turning plate, arranged on the supporting frame between the first conveyor belt and the second conveyor belt;

[0020] A first rotating shaft connected to one end of the flip plate;

[0021] A supporting limiting square rod is arranged on the flip groove, and the top end of the supporting limiting square rod is closely connected with the first rotating shaft;

[0022] A half gear connected to the other end of the first rotating shaft and cooperatively connected to the first driving member;

[0023] A second rotating shaft connected to the other end of the flip plate;

[0024] A limit block, disposed on the support frame and connected to the second rotating shaft in a limit-fitting manner;

[0025] The first rotating shaft, supporting and limiting square rod, half gear, second rotating shaft and limiting block are provided in two groups, and the two groups of the first rotating shaft, supporting and limiting square rod, half gear, second rotating shaft and limiting block are symmetrically arranged on the left and right sides of the flip plate, so that the flip plate can be flipped left and right in turn around the axis of the first rotating shaft at two different positions.

[0026] Furthermore, the first driving member comprises:

[0027] A first cylinder is disposed in the turning groove;

[0028] A first limiting rod, both ends of which are connected to the inner wall of the flip groove;

[0029] The mating drive assembly is provided with two groups, and the two groups of mating drive assemblies are correspondingly matched with the two groups of half gears to drive the flip plate to flip left and right in sequence;

[0030] The first connecting rod has two ends connected to the two groups of the mating drive components so that the two groups of the mating drive components move synchronously.

[0031] Further, the mating drive assembly comprises:

[0032] A first sliding block slides on the first limiting rod, one end of which is connected to the output end of the first cylinder, and the other end of which is connected to the first connecting rod;

[0033] A first rack, disposed on the first sliding block and meshingly connected with a group of the half gears;

[0034] A U-shaped limiting block is arranged on the first sliding block and cooperates with a group of the first rotating shafts to limit the position so as to prevent the first rotating shafts from being separated from the supporting limiting square rod when rotating.

[0035] Furthermore, the pushing part comprises:

[0036] A pushing member, disposed on the supporting frame;

[0037] A second limiting plate is connected to the pushing member to limit the position of the U-shaped paper corner protector on the first conveyor belt.

[0038] Furthermore, the pushing member comprises:

[0039] A support block, disposed on the support frame and located at the upper end of the first conveyor belt;

[0040] A cylindrical groove is provided in the support block;

[0041] A fixed column, one end of which is connected to the bottom end of the cylindrical groove;

[0042] A sliding sleeve is inserted into the cylindrical groove, and the other end of the fixed column slides inside the sliding sleeve;

[0043] A limit spring, sleeved on the fixing column, one end of which is connected to the bottom end of the cylindrical groove, and the other end of which is connected to one end of the sliding sleeve;

[0044] A second limiting groove is provided on the supporting block and communicated with the cylindrical groove;

[0045] A push plate slides in the second limiting groove, and one end of the push plate is connected to the sliding sleeve to push the U-shaped paper corner protector on the first conveyor belt onto the second conveyor belt, thereby crossing and overlapping with the U-shaped paper corner protector on the second conveyor belt;

[0046] A first limiting groove is provided on the supporting block and is communicated with the cylindrical groove;

[0047] A second connecting rod, disposed in the first limiting groove, and one end of which is connected to the sliding sleeve;

[0048] The first baffle is arranged on the supporting block to block the transmission of the first conveyor belt.

[0049] Furthermore, the reciprocating drive member comprises:

[0050] A third rotating shaft, one end of which is rotatably connected to an end of the support block away from the second limiting plate;

[0051] A rotating cam connected to the third rotating shaft, and the rotating cam is in contact with the second connecting rod to drive the second connecting rod to slide along the first limiting groove;

[0052] The first motor is arranged on the supporting block, and an output end of the first motor is connected to the rotating cam.

[0053] Furthermore, the limiting portion includes:

[0054] A first fixed block, disposed on one end of the support block close to the rotating cam;

[0055] a second rack, slidably connected to the first fixed block;

[0056] a fourth rotating shaft, disposed on the supporting block;

[0057] A first gear, rotatably connected to the other end of the fourth rotating shaft and meshingly connected to the second rack;

[0058] A second fixed block, disposed on the supporting block and located at the bottom end of the fourth rotating shaft;

[0059] a third rack, sliding on the second fixed block and meshingly connected with the first gear;

[0060] A second baffle is connected to one end of the third rack to block the conveying route of the second conveyor belt.

[0061] Furthermore, the cutting part comprises:

[0062] A cutting table, one end of which is connected to the support frame, and the turning groove is provided on the cutting table;

[0063] A cutting machine is arranged on the cutting table and cuts the continuous U-shaped paper corner protectors into U-shaped paper corner protectors of fixed length;

[0064] A cutting opening is provided on the cutting machine for placing the U-shaped paper corner protector.

[0065] Furthermore, the bundling unit comprises:

[0066] A third conveyor belt is placed in cooperation with the second conveyor belt to ensure the conveying state of the U-shaped paper corner protector;

[0067] The bundling mechanism is arranged on the third conveyor belt to bundle the two U-shaped paper corner protectors that are crossed and overlapped.

[0068] Compared with the prior art, the present invention has the following beneficial effects:

[0069] By providing a flipping member, after the U-shaped paper corner protector is cut, the U-shaped paper corner protector falls on the flipping member, and the flipping member is driven by the first driving member to flip left and right, so that the cut U-shaped paper corner protector is flipped left and right in turn onto the first conveyor belt and the second conveyor belt, and the orientation of the U-shaped paper corner protector is changed at the same time, so that the openings of the two U-shaped paper corner protectors on the first conveyor belt and the second conveyor belt are opposite to each other, so that the two U-shaped paper corner protectors are conveniently attached together; and by providing a reciprocating driving member to drive the pushing part to move, the U-shaped paper corner protector on the first conveyor belt is pushed onto the second conveyor belt, and cross-overlaps with the U-shaped paper corner protector on the second conveyor belt, thereby avoiding manual operation and saving manpower; and by providing a limiting part, the U-shaped paper corner protector is blocked from leaving the second conveyor belt and entering the bundling part, and when the two U-shaped paper corner protectors are attached together, the blocking is released in cooperation with the reciprocating driving member, so that the two U-shaped paper corner protectors are bundled together through the bundling part, thereby avoiding scattering during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0071] Figure 1 is a first stereogram of the present invention;

[0072] Figure 2 It is a first partial stereogram of the present invention;

[0073] Figure 3 It is a second partial stereogram of the present invention;

[0074] Figure 4 For the present invention Figure 3 A in the enlarged view;

[0075] Figure 5 A three-dimensional diagram of the flip member of the present invention;

[0076] Figure 6 For the present invention Figure 5 The enlarged view of point B in the figure;

[0077] Figure 7 is a first cross-sectional perspective view of the present invention;

[0078] Figure 8 is a second cross-sectional perspective view of the present invention;

[0079] Fig. 9 It is a third partial stereogram of the present invention;

[0080] Fig.10 For the present invention Fig. 9 The enlarged view of point C in the figure;

[0081] Fig.11 is a fourth partial stereogram of the present invention;

[0082] Fig.12 It is a schematic diagram of the structure of two U-shaped paper corner protectors crossing and overlapping in the present invention.

[0083] Description of the numbers in the figure:

[0084] 1. Support frame; 101. First conveyor belt; 102. Second conveyor belt; 201. Cutting table; 202. Cutting machine; 203. Cutting port; 204. Turning slot; 3. Turning member; 302. Turning plate; 303. Supporting limiting square rod; 304. First cylinder; 305. First sliding block; 306. First rack; 307. First rotating shaft; 308. Half gear; 309. U-shaped limiting block; 310. First connecting rod; 311. Second rotating shaft; 312. Limiting block; 313. First limiting rod; 401. Second support plate; 402. First limiting plate; 403. Second cylinder; 404. Second limiting rod; 5. Pushing part ;501, support block;502, second limit plate;503, cylindrical groove;504, first limit groove;505, fixed column;506, sliding sleeve;507, push plate;508, limit spring;509, second connecting rod;510, first baffle;511, first motor;512, rotating cam;513, third rotating shaft;514, second limit groove;601, first fixed block;602, second rack;603, fourth rotating shaft;604, first gear;605, second fixed block;606, third rack;607, second baffle;701, third conveyor belt;702, strapping mechanism;8, U-shaped paper corner protector. DETAILED DESCRIPTION

[0085] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0086] like Figures 1 to 12As shown, a high-speed CNC paper corner protector includes: a support frame 1, a U-shaped paper corner protector 8; also includes: a cutting part, connected to the support frame 1, to cut the U-shaped paper corner protector 8 into a specified length; a flip groove 204, opened on the cutting part; a first conveyor belt 101, arranged on the support frame 1, to convey the cut U-shaped paper corner protector 8 to the next process; a second conveyor belt 102, arranged on the support frame 1, and conveying the U-shaped paper corner protector 8 in sequence with the first conveyor belt 101; a flip member 3, arranged on the support frame 1, and the U-shaped paper corner protector 8 just falls on the flip member 3 after cutting, so that the U-shaped paper corner protector 8 is flipped 90 degrees by flipping left and right, so that two adjacent U-shaped paper corner protectors 8 fall on the first conveyor belt 101 and the second conveyor belt 102 in sequence. The first driving member is arranged in the flip groove 204 and is connected with the flip member 3 to drive the flip member 3 to flip left and right; the pushing part 5 is arranged on the support frame 1, and pushes the U-shaped paper corner protector 8 on the first conveyor belt 101 to the second conveyor belt 102 to cross and overlap the two U-shaped paper corner protectors 8; the reciprocating driving member is arranged on the pushing part 5 to drive the pushing part 5 to reciprocate; the limiting part is arranged on the pushing part 5 and cooperates with the reciprocating driving member to avoid one of the U-shaped paper corner protectors 8 being directly transmitted to the next process; the bundling part is arranged on the side of the second conveyor belt 102 away from the cutting part to bundle the two U-shaped paper corner protectors 8 that are cross-over and overlapped.

[0087] In the embodiment of the present invention, a flipping member 3 is provided. After the U-shaped paper corner protector 8 is cut, the U-shaped paper corner protector 8 falls on the flipping member 3, and the flipping member 3 is driven by the first driving member to flip left and right, so that the cut U-shaped paper corner protector 8 is flipped left and right in turn onto the first conveyor belt 101 and the second conveyor belt 102, and the direction of the U-shaped paper corner protector 8 is changed at the same time, so that the openings of the two U-shaped paper corner protectors 8 on the first conveyor belt 101 and the second conveyor belt 102 are opposite to each other, so that the two U-shaped paper corner protectors 8 are conveniently attached together; and a reciprocating driving member is provided. To drive the pushing part 5 to move, the U-shaped paper corner protector 8 on the first conveyor belt 101 is pushed onto the second conveyor belt 102, and crosses and overlaps with the U-shaped paper corner protector 8 on the second conveyor belt 102, thereby avoiding manual operation and saving manpower; and by setting a limiting part, the U-shaped paper corner protector 8 is blocked from leaving the second conveyor belt 102 and entering the bundling part, and when the two U-shaped paper corner protectors 8 are attached together, the reciprocating drive member cooperates to release the blockage, so that the two U-shaped paper corner protectors 8 are bundled together through the bundling part, thereby avoiding dispersion during transportation.

[0088] The first conveyor belt 101 is set higher than the second conveyor belt 102 by a certain distance, so that when the pushing part 5 pushes the U-shaped paper corner protectors 8, the two U-shaped paper corner protectors 8 can cross and overlap, avoiding the two ends of the two U-shaped paper corner protectors 8 from abutting against each other and being unable to cross; at the same time, Fig.12 As shown, two U-shaped paper corner protectors 8 are cross-overlapped.

[0089] like Figures 2 to 6 As shown, the flip member 3 includes: a flip plate 302, which is arranged on the support frame 1 between the first conveyor belt 101 and the second conveyor belt 102; a first rotating shaft 307, which is connected to one end of the flip plate 302; a supporting limiting square rod 303, which is arranged on the flip groove 204, and the top end is limited and fitted with the first rotating shaft 307; a half gear 308, which is connected to the other end of the first rotating shaft 307 and is connected with the first driving member; a second rotating shaft 311, which is connected to the other end of the flip plate 302; The positioning block 312 is arranged on the support frame 1 and is limitedly connected with the second rotating shaft 311; the first rotating shaft 307, the supporting limiting square rod 303, the half gear 308, the second rotating shaft 311 and the positioning block 312 are arranged in two groups, and the two groups of the first rotating shaft 307, the supporting limiting square rod 303, the half gear 308, the second rotating shaft 311 and the positioning block 312 are symmetrically arranged on the left and right sides of the flip plate 302, so that the flip plate 302 can be flipped left and right in turn around the axis of the first rotating shaft 307 at two different positions.

[0090] In the embodiment of the present invention, after cutting, the U-shaped paper corner protector 8 falls on the flip plate 302. Since the first conveyor belt 101 is higher than the second conveyor belt 102, the end of the U-shaped paper corner protector 8 close to the first conveyor belt 101 contacts the first conveyor belt 101 and is driven by the conveyor belt to move forward. At this time, a group of the half gears 308 are driven to rotate by the first driving member, and the rotation of the half gears 308 drives the corresponding first rotating shafts 307 to rotate. Since the two groups of first rotating shafts 307 are arranged on the left and right sides of the flip plate 302, a group of the first rotating shafts 307 rotates, thereby driving the flip plate 302 to rotate along the axis of the group of the first rotating shafts 307, and the other end of the flip plate 302 is tilted; since the inner wall of the U-shaped paper corner protector 8 is in contact with the flip plate 302, the flip plate 302 drives the second U-shaped paper corner guard 8 to turn over 90 degrees and rotate in a 'C' shape onto the second conveyor belt 102, thereby moving forward with the second conveyor belt 102, and then, through the first driving member, drives the half gear 308 to rotate in the opposite direction, so that the flip plate 302 is restored; at this time, the second U-shaped paper corner guard 8 is also cut and falls on the flip plate 302, and continues to be driven by the first driving member to rotate in the opposite direction of another set of half gears 308, and the half gear 308 rotates to drive the corresponding first rotating shaft 307 to rotate, thereby driving the flip plate 302 to rotate along the axis of another set of first rotating shafts 307, and the other end of the flip plate 302 is tilted; thereby driving the second U-shaped paper corner guard 8 to turn over 90 degrees and rotate in an inverted 'C' shape onto the first conveyor belt 101, thereby moving forward with the first conveyor belt 101. At this time, the two adjacent U-shaped paper corner guards 8 are rotated in a 'C' shape onto the second conveyor belt 102 and in an inverted 'C' shape onto the first conveyor belt 101 in turn; so that the two can be easily crossed and overlapped later.

[0091] The supporting limiting square rod 303 and the limiting block 312 are provided, both of which are provided with a semi-cylindrical groove 503, and are limitedly connected with the first rotating shaft 307 and the second rotating shaft 311, so as to avoid the first rotating shaft 307 and the second rotating shaft 311 rotating and driving the flip plate 302 to rotate and produce deviation, and the corresponding axes of the first rotating shaft 307 and the second rotating shaft 311 are on the same straight line, so as to stabilize the rotation of the flip plate 302;

[0092] Among them, a second support plate 401 is arranged on the support frame 1, a second cylinder 403 is arranged on the second support plate 401, and the output end of the second cylinder 403 is connected to the first limit plate 402, the first limit plate 402 is above the second conveyor belt 102, and a second limit rod 404 is arranged on the first limit plate 402, and the second limit rod 404 is slidably connected on the second support plate 401; when the U-shaped paper corner protector 8 rotates onto the second conveyor belt 102, the U-shaped paper corner protector 8 is limited, so that the U-shaped paper corner protector 8 is in a 'C' shape and keeps parallel to the flip plate 302 and moves forward along the second conveyor belt 102; when processing different types of U-shaped paper corner protectors 8, the second cylinder 403 can be started to drive the first limit plate 402 to move, thereby changing the restriction range on the second conveyor belt 102 to adapt to U-shaped paper corner protectors 8 of different sizes.

[0093] like Figures 3 to 6 As shown, the first driving member includes: a first cylinder 304, which is arranged in the flip groove 204; a first limiting rod 313, both ends of which are connected to the inner wall of the flip groove 204; a matching driving component, which is provided with two groups, and the two groups of matching driving components correspond to the two groups of half gears 308 to drive the flip plate 302 to flip left and right in sequence; a first connecting rod 310, both ends of which are connected to the two groups of matching driving components to make the two groups of matching driving components move synchronously.

[0094] like Figures 3 to 6 As shown, the mating drive assembly includes: a first sliding block 305, which slides on the first limiting rod 313, and one end is connected to the output end of the first cylinder 304, and the other end is connected to the first connecting rod 310; a first rack 306, which is arranged on the first sliding block 305 and is meshed and connected with a group of half gears 308; a U-shaped limiting block 309, which is arranged on the first sliding block 305 and cooperates with a group of the first rotating shafts 307 to prevent the first rotating shaft 307 from detaching from the supporting limiting square rod 303 when rotating.

[0095] In the embodiment of the present invention, when the U-shaped paper corner protector 8 falls on the flip plate 302 and the flip plate 302 needs to be rotated left and right in sequence, the first cylinder 304 is started to drive the first sliding block 305 on the first group of matching drive components to move along the first limiting rod 313 in the direction away from the first cylinder 304, and the first sliding block 305 drives the second group of matching drive components to move away from the corresponding half gear 308 as a whole through the first connecting rod 310. At the same time, the first sliding block 305 drives the first rack 306 to move in the direction away from the first cylinder 304, and the first rack 306 drives the corresponding group of half gears 308 to rotate, thereby driving the first rack 306 to rotate. The driving shaft 307 rotates, and the first rotating shaft 307 drives the flip plate 302 to rotate a certain angle along the axis of the first rotating shaft 307, and the other end of the flip plate 302 tilts up, and the U-shaped paper corner protector 8 is rotated onto the second conveyor belt 102; at this time, the output shaft of the first cylinder 304 moves in the opposite direction, driving the first sliding block 305 to move in the opposite direction, so that the first sliding block 305 drives the first rack 306 to move in the direction close to the first cylinder 304, and the first rack 306 drives the corresponding set of half gears 308 to rotate in the opposite direction, thereby driving the first rotating shaft 307 to rotate in the opposite direction, thereby driving the flip plate 302 to rotate and restore to a horizontal state;

[0096] At this time, the second U-shaped paper corner protector 8 is cut and falls on the flip plate 302, and the output shaft of the first cylinder 304 continues to move in the opposite direction, driving the first sliding block 305 to move in the opposite direction. The first sliding block 305 drives the second group of cooperating drive components to move as a whole toward the first cylinder 304 through the first connecting rod 310, so that the second group of first sliding blocks 305 drive the second first rack 306 to engage with the corresponding other group of half gears 308, and continue to move to drive the half gears 308 to rotate, thereby driving another group of first rotating shafts 307 to rotate. The other group of first rotating shafts 307 drives the flip plate 302 to rotate a certain angle along the axis of the other group of first rotating shafts 307, and the other end of the flip plate 302 is tilted, and the second U-shaped paper corner protector 8 is rotated to the first conveyor belt 101, corresponding to the first U-shaped paper corner protector 8.

[0097] Among them, since both sides of the flip plate 302 need to be flipped and tilted, it is impossible to set the support limit square rod 303 with a completely restricted position connected to the first rotating shaft 307, so that when the first rotating shaft 307 rotates, the first rotating shaft 307 may rotate out of the support limit square rod 303, thereby affecting the normal operation of the equipment; therefore, a U-shaped limit block 309 is provided, one end of which is connected to the first sliding block 305. When the first gear 604 is meshed with the half gear 308, the inner wall of the other end of the U-shaped limit block 309 is fitted together with the top of the first rotating shaft 307, thereby preventing the first rotating shaft 307 from being separated from the limit of the support limit square rod 303. At the same time, when the first gear 604 is not meshed with the half gear 308, the U-shaped limit block 309 also moves with the first sliding block 305, away from the top of the first rotating shaft 307, so that the corresponding first rotating shaft 307 can be tilted normally.

[0098] like Figures 7 and 8 As shown, the pushing part 5 includes: a pushing member, which is arranged on the supporting frame 1; and a second limiting plate 502, which is connected to the pushing member to limit the position of the U-shaped paper corner protector 8 on the first conveyor belt 101.

[0099] like Figures 7 and 8 As shown, the pushing member includes: a support block 501, which is arranged on the support frame 1 and is located at the upper end of the first conveyor belt 101; a cylindrical groove 503, which is opened in the support block 501; a fixed column 505, one end of which is connected to the bottom end of the cylindrical groove 503; a sliding sleeve 506, which is inserted into the cylindrical groove 503, and the other end of the fixed column 505 slides inside the sliding sleeve 506; a limiting spring 508, which is sleeved on the fixed column 505, one end of which is connected to the bottom end of the cylindrical groove 503, and the other end of which is connected to one end of the sliding sleeve 506; a second limiting groove 514, which is opened on the support block 501 and connected to the cylindrical The second conveyor belt 101 is connected with the cylindrical groove 503; the push plate 507 slides in the second limiting groove 514, and one end is connected to the sliding sleeve 506 to push the U-shaped paper corner protector 8 on the first conveyor belt 101 to the second conveyor belt 102, so as to cross and overlap with the U-shaped paper corner protector 8 on the second conveyor belt 102; the first limiting groove 504 is opened on the support block 501 and is connected with the cylindrical groove 503; the second connecting rod 509 is arranged in the first limiting groove 504, and one end is connected to the sliding sleeve 506; the first baffle 510 is arranged on the support block 501 to block the transmission of the first conveyor belt 101.

[0100] like Figures 9 to 11As shown, the reciprocating drive member includes: a third rotating shaft 513, one end of which is rotatably connected to one end of the support block 501 away from the second limiting plate 502; a rotating cam 512, which is connected to the third rotating shaft 513, and the rotating cam 512 is in contact with the second connecting rod 509 to drive the second connecting rod 509 to slide along the first limiting groove 504; a first motor 511, which is arranged on the support block 501, and the output end is connected to the rotating cam 512.

[0101] In the embodiment of the present invention, when the second U-shaped paper corner protector 8 rotates onto the first conveyor belt 101, it is limited by the second limiting plate 502, so that the U-shaped paper corner protector 8 is in an inverted 'C' shape and remains parallel to the flip plate 302 and moves forward along the first conveyor belt 101. If it continues to move forward, it will be blocked by the first baffle plate 510 and stop at the corresponding position. At this time, the first motor 511 is started to drive the rotating cam 512 to rotate, and the outer end of the rotating cam 512 is fitted with the second connecting rod 509, thereby pushing the second connecting rod 509 to move along the first limiting groove 504, and the other end of the second connecting rod 509 drives the sliding sleeve 506 to slide along the cylindrical groove 503, and the sliding sleeve 506 drives the pushing plate 50 7 slides along the second limiting groove 514, and at the same time squeezes the limiting spring 508; when the contact point between the rotating cam 512 and the second connecting rod 509 reaches the position farthest from the cam rotation center, the second connecting rod 509 is driven to move to the position farthest from the rotating cam 512, and at the same time the sliding sleeve 506 is driven inward to move to the position closest to the bottom end of the cylindrical groove 503, at this time the limiting spring 508 is also compressed to the limit; since the rotating cam 512 is designed as a spiral disk, the position farthest from the cam rotation center by the edge of the rotating cam 512 is adjacent to the position closest to the cam rotation center by the edge of the rotating cam 512; thus, when the rotating cam 512 rotates to the position farthest from the cam rotation center and contacts the second connecting rod 509 When the second U-shaped paper corner protector 8 is touched, it continues to rotate, so that the rotating cam 512 is disengaged from the second connecting rod 509, and at the same time, the closest position of the cam rotation center corresponds to the second connecting rod 509. After the rotating cam 512 and the second connecting rod 509 are disengaged, the limit spring 508 loses its restraint and releases its elastic force, driving the sliding sleeve 506 to move outward, thereby driving the push plate 507 to move outward. At this time, the second U-shaped paper corner protector 8 moves along the first conveyor belt 101 to one end and abuts against the first baffle plate 510. The push plate 507 moves outward to give the second U-shaped paper corner protector 8 a thrust, pushing the second U-shaped paper corner protector 8 from the first conveyor belt 101 to the second conveyor belt 102, crossing and overlapping with the first U-shaped paper corner protector 8, thereby The two U-shaped paper corner protectors 8 are cross-overlapped; while the sliding sleeve 506 drives the push plate 507 to move, it drives the second connecting rod 509 to move along the first limiting groove 504 in the direction close to the rotating cam 512, and finally contacts the position closest to the center of the rotating cam 512, so that the elastic force is released, and the rotating cam 512 continues to rotate, driving the second connecting rod 509 to move along the first limiting groove 504 in the direction away from the rotating cam 512, thereby driving the sliding sleeve 506 to move in the opposite direction, and the sliding sleeve 506 drives the push plate 507 to move in the opposite direction and enter the second limiting groove 514; thereby, it does not affect the next second U-shaped paper corner protector 8 moving along the first conveyor belt 101 to the first baffle 510.

[0102] like Figures 9 to 11As shown, the limiting portion includes: a first fixed block 601, which is arranged on one end of the supporting block 501 close to the rotating cam 512; a second rack 602, which is slidably connected to the first fixed block 601; a fourth rotating shaft 603, which is arranged on the supporting block 501; a first gear 604, which is rotatably connected to the other end of the fourth rotating shaft 603 and meshingly connected to the second rack 602; a second fixed block 605, which is arranged on the supporting block 501 and is at the bottom end of the fourth rotating shaft 603; a third rack 606, which slides on the second fixed block 605 and meshingly connected to the first gear 604; a second baffle 607, which is connected to one end of the third rack 606 to block the transmission route of the second conveyor belt 102.

[0103] In the embodiment of the present invention, when the first U-shaped paper corner protector 8 moves to the end along the second conveyor belt 102, it will be blocked by the second baffle 607. When the push plate 507 pushes the second U-shaped paper corner protector 8 onto the second conveyor belt 102 and crosses and overlaps with the first U-shaped paper corner protector 8, the rotating cam 512 continues to rotate, driving the second rack 602 to move along the first fixed block 601 in a direction away from the center of the rotating cam 512, the second rack 602 drives the first gear 604 to rotate, and the first gear 604 drives the third rack 606 to move along the second fixed block 605 in a direction close to the rotating cam 512, thereby driving the second baffle 607 away from the second conveyor belt. Belt 102, so that the U-shaped paper corner protector 8 can move to the bundling mechanism 702 process along the second conveyor belt 102; the rotating cam 512 continues to rotate, driving the third rack 606 to move along the second fixed block 605 in the direction away from the center of the rotating cam 512, the third rack 606 drives the first gear 604 to rotate, the first gear 604 drives the second rack 602 to move along the first fixed block 601 in the direction away from the rotating cam 512, and at the same time the third rack 606 drives the second baffle 607 to approach the second conveyor belt 102, blocking the exit of the second conveyor belt 102, preventing the first U-shaped paper corner protector 8 from moving to the bundling mechanism 702 process alone.

[0104] like Figure 1 As shown, the cutting part includes: a cutting table 201, one end of which is connected to the support frame 1, and the turning groove 204 is opened on the cutting table 201; a cutting machine 202, which is arranged on the cutting table 201 and cuts the continuous U-shaped paper corner protector 8 into the U-shaped paper corner protector 8 of a fixed length; a cutting port 203, which is opened on the cutting machine 202 to place the U-shaped paper corner protector 8.

[0105] like Figure 1As shown, the bundling part includes: a third conveyor belt 701, which is placed in cooperation with the second conveyor belt 102 to ensure the conveying state of the U-shaped paper corner protectors 8; and a bundling mechanism 702, which is arranged on the third conveyor belt 701 to bundle the two U-shaped paper corner protectors 8 that are crossed and overlapped.

[0106] In the embodiment of the present invention, after the cardboard is glued, folded and formed, it moves to the cutting port 203 following the automatic equipment, and the staff sets the cutting frequency of the cutting machine 202 to determine the cutting length of the U-shaped paper corner protector 8 and the speed at which it falls on the flip plate 302.

[0107] At the same time, the first U-shaped paper corner protector 8 and the second U-shaped paper corner protector 8 cross and overlap each other, and move forward along the second conveyor belt 102 to the third conveyor belt 701, so as to pass through the lower end of the bundling mechanism 702 along the third conveyor belt 701, and the two U-shaped paper corner protectors 8 are limitedly bundled through the bundling mechanism 702 of the prior art, thereby facilitating transportation.

[0108] Working principle: After the cardboard is glued, folded and formed, the U-shaped paper corner protector 8 is cut. After cutting, the U-shaped paper corner protector 8 falls on the flip plate 302. The end of the U-shaped paper corner protector 8 close to the first conveyor belt 101 contacts the first conveyor belt 101 and is driven by the conveyor belt to move forward. At this time, the first cylinder 304 is started to drive the first rack 306 to move. The first rack 306 drives a group of the half gears 308 to rotate. The rotation of the half gear 308 drives the corresponding first rotating shaft 307 to rotate. Since the two groups of first rotating shafts 307 are arranged on the left and right sides of the flip plate 302, a group of the first rotating shafts 307 rotates, thereby driving the flip plate 302 to rotate along the axis of a group of the first rotating shafts 307, and the other end of the flip plate 302 is tilted; since the inner wall of the U-shaped paper corner protector 8 is in contact with the flip plate 302, it is driven by the flip plate 302 to flip 90 degrees and rotate in a 'C' shape. The first rack 306 is driven by the first cylinder 304 to move in the opposite direction, and the first rack 306 drives the half gear 308 to rotate in the opposite direction, so that the flip plate 302 is restored; at this time, the second U-shaped paper corner protector 8 is also cut and falls on the flip plate 302, and the first cylinder 304 continues to move in the opposite direction to drive another set of first racks 306 to move in the opposite direction, and another set of first racks 306 drives another set of half gears 308 to rotate in the opposite direction, and the rotation of the half gear 308 drives the corresponding first rotating shaft 307 to rotate, thereby driving the flip plate 302 to rotate along the axis of the other set of first rotating shafts 307, and the other end of the flip plate 302 is tilted; thereby driving the second U-shaped paper corner protector 8 to flip 90 degrees, rotate in an inverted 'C' shape to the first conveyor belt 101, and thus move forward with the first conveyor belt 101.

[0109] When the second U-shaped paper corner protector 8 moves along the first conveyor belt 101 to the first baffle plate 510, the first motor 511 is started to drive the rotating cam 512 to rotate, so that the rotating cam 512 is disengaged from the second connecting rod 509, and at the same time, the closest position of the cam rotation center corresponds to the second connecting rod 509. After the rotating cam 512 and the second connecting rod 509 are disengaged, the limit spring 508 loses its restraint and releases its elastic force, driving the sliding sleeve 506 to move outward, thereby driving the pushing plate 507 to move outward. At this time, the second U-shaped paper corner protector 8 moves along the first conveyor belt 101 to one end and abuts against the first baffle plate 510. The pushing plate 507 moves outward to give the second U-shaped paper corner protector 8 a thrust, pushing the second U-shaped paper corner protector 8 from the first conveyor belt 101 to the second conveyor belt 10 2, cross-overlapping with the first U-shaped paper corner protector 8, thereby completing the cross-overlapping of the two U-shaped paper corner protectors 8; while the sliding sleeve 506 drives the push plate 507 to move, it drives the second connecting rod 509 to move along the first limiting groove 504 in the direction close to the rotating cam 512, and finally contacts the position closest to the center of the rotating cam 512, so that the elastic force is released, and the rotating cam 512 continues to rotate, driving the second connecting rod 509 to move along the first limiting groove 504 in the direction away from the rotating cam 512, thereby driving the sliding sleeve 506 to move in the opposite direction, and the sliding sleeve 506 drives the push plate 507 to move in the opposite direction and enter the second limiting groove 514; thereby, it does not affect the next second U-shaped paper corner protector 8 moving along the first conveyor belt 101 to the first baffle 510.

[0110] When the first U-shaped paper corner protector 8 moves to the end along the second conveyor belt 102, it will be blocked by the second baffle 607. When the push plate 507 pushes the second U-shaped paper corner protector 8 to the second conveyor belt 102 and crosses and overlaps with the first U-shaped paper corner protector 8, the rotating cam 512 continues to rotate, driving the second rack 602 to move along the first fixed block 601 in the direction away from the center of the rotating cam 512, and the second rack 602 drives the first gear 604 to rotate, and the first gear 604 drives the third rack 606 to move along the second fixed block 605 in the direction close to the rotating cam 512, thereby driving the second baffle 607 away from the second conveyor belt 102, so that the U-shaped paper corner protector 8 can move along the second conveyor belt 102 to the third conveyor belt 701, pass through the lower end of the bundling mechanism 702 along the third conveyor belt 701, and limit the bundling of the two U-shaped paper corner protectors 8, thereby facilitating transportation.

[0111] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-speed CNC paper corner protection machine, comprising: A support frame (1), a U-shaped paper corner protector (8); characterized in that it also comprises: A cutting portion connected to the support frame (1) for cutting the U-shaped paper corner protector (8) into a specified length; A turning groove (204) is formed on the cutting portion; A first conveyor belt (101) is arranged on the support frame (1) to convey the cut U-shaped paper corner protector (8) to the next process; A second conveyor belt (102) is arranged on the support frame (1) and conveys the U-shaped paper corner protector (8) in sequence with the first conveyor belt (101); A flipping member (3) is arranged on the support frame (1), and the U-shaped paper corner protector (8) falls on the flipping member (3) after being cut, so that the U-shaped paper corner protector (8) is flipped 90 degrees by flipping left and right, so that two adjacent U-shaped paper corner protectors (8) fall on the first conveyor belt (101) and the second conveyor belt (102) in sequence for transmission respectively; A first driving member, disposed in the flip groove (204) and connected to the flip member (3) to drive the flip member (3) to flip left and right; A pushing portion (5) is arranged on the support frame (1) and pushes the U-shaped paper corner protectors (8) on the first conveyor belt (101) onto the second conveyor belt (102) so as to cross and overlap the two U-shaped paper corner protectors (8); A reciprocating driving member, arranged on the pushing portion (5) to drive the pushing portion (5) to reciprocate; A limiting portion, arranged on the pushing portion (5), cooperates with the reciprocating driving member to prevent one of the U-shaped paper corner protectors (8) from being directly transferred to the next process; A bundling section, arranged on a side of the second conveyor belt (102) away from the cutting section, for bundling two U-shaped paper corner protectors (8) that are crossed and overlapped; The flip member (3) comprises: a turning plate (302) arranged on the supporting frame (1) between the first conveyor belt (101) and the second conveyor belt (102); A first rotating shaft (307) connected to one end of the flip plate (302); A supporting limiting square rod (303) is arranged on the flip groove (204), and the top end is connected to the first rotating shaft (307) in a limiting and fitting manner; A half gear (308) connected to the other end of the first rotating shaft (307) and cooperatively connected to the first driving member; A second rotating shaft (311) connected to the other end of the flip plate (302); A limit block (312) is arranged on the support frame (1) and is closely connected to the second rotating shaft (311) in a limit position; The first rotating shaft (307), the supporting and limiting square rod (303), the half gear (308), the second rotating shaft (311) and the limiting block (312) are provided in two groups, and the two groups of the first rotating shaft (307), the supporting and limiting square rod (303), the half gear (308), the second rotating shaft (311) and the limiting block (312) are symmetrically arranged on the left and right sides of the flip plate (302), so that the flip plate (302) can be flipped left and right in sequence around the axes of the two groups of the first rotating shafts (307) at different positions.

2. A high-speed CNC paper corner protection machine according to claim 1, characterized in that: The first driving member comprises: A first cylinder (304) is disposed in the turning groove (204); A first limiting rod (313), both ends of which are connected to the inner wall of the turning groove (204); Two groups of mating drive components are provided, and the two groups of mating drive components are mated with the two groups of half gears (308) to drive the flip plate (302) to flip left and right in sequence; The first connecting rod (310) has two ends connected to the two groups of mating drive assemblies so that the two groups of mating drive assemblies move synchronously.

3. A high-speed CNC paper corner protection machine according to claim 2, characterized in that: The mating drive assembly comprises: A first sliding block (305) slides on the first limiting rod (313), one end of which is connected to the output end of the first cylinder (304), and the other end of which is connected to the first connecting rod (310); A first rack (306) is disposed on the first sliding block (305) and is meshingly connected with a set of the half gears (308); A U-shaped limiting block (309) is arranged on the first sliding block (305) and cooperates with a group of the first rotating shafts (307) to limit the position, so as to prevent the first rotating shafts (307) from being separated from the supporting limiting square rod (303) when rotating.

4. A high-speed CNC paper corner protection machine according to claim 3, characterized in that: The pushing part (5) comprises: A pushing member, arranged on the support frame (1); A second limiting plate (502) is connected to the pushing member to limit the position of the U-shaped paper corner protector (8) on the first conveyor belt (101).

5. A high-speed CNC paper corner protection machine according to claim 4, characterized in that: The pusher comprises: A support block (501) is arranged on the support frame (1) and is located at the upper end of the first conveyor belt (101); A cylindrical groove (503) is provided in the support block (501); A fixing column (505), one end of which is connected to the bottom end of the cylindrical groove (503); A sliding sleeve (506) is inserted into the cylindrical groove (503), and the other end of the fixed column (505) slides inside the sliding sleeve (506); A limit spring (508) is sleeved on the fixing column (505), one end of which is connected to the bottom end of the cylindrical groove (503), and the other end of which is connected to one end of the sliding sleeve (506); A second limiting groove (514) is formed on the supporting block (501) and is in communication with the cylindrical groove (503); A pushing plate (507) slides in the second limiting groove (514), and one end of the pushing plate is connected to the sliding sleeve (506), so as to push the U-shaped paper corner protector (8) on the first conveyor belt (101) onto the second conveyor belt (102), thereby crossing and overlapping with the U-shaped paper corner protector (8) on the second conveyor belt (102); A first limiting groove (504) is formed on the supporting block (501) and is in communication with the cylindrical groove (503); A second connecting rod (509), disposed in the first limiting groove (504), and having one end connected to the sliding sleeve (506); A first baffle (510) is disposed on the support block (501) to block the transmission of the first conveyor belt (101).

6. A high-speed CNC paper corner protection machine according to claim 5, characterized in that: The reciprocating drive member comprises: A third rotating shaft (513), one end of which is rotatably connected to an end of the support block (501) away from the second limiting plate (502); A rotating cam (512) connected to the third rotating shaft (513), and the rotating cam (512) is in contact with the second connecting rod (509) to drive the second connecting rod (509) to slide along the first limiting groove (504); The first motor (511) is arranged on the support block (501), and the output end is connected to the rotating cam (512).

7. A high-speed CNC paper corner protection machine according to claim 6, characterized in that: The limiting part comprises: A first fixed block (601) is arranged on one end of the support block (501) close to the rotating cam (512); A second rack (602) slidably connected to the first fixed block (601); A fourth rotating shaft (603) is arranged on the supporting block (501); A first gear (604) is rotatably connected to the other end of the fourth rotating shaft (603) and meshingly connected to the second rack (602); A second fixed block (605) is disposed on the supporting block (501) and is located at the bottom end of the fourth rotating shaft (603); A third rack (606) slides on the second fixed block (605) and is meshedly connected with the first gear (604); A second baffle (607) is connected to one end of the third rack (606) to block the conveying route of the second conveyor belt (102).

8. A high-speed CNC paper corner protection machine according to claim 7, characterized in that: The cutting part comprises: A cutting table (201), one end of which is connected to the support frame (1), and the turning groove (204) is provided on the cutting table (201); A cutting machine (202) is arranged on the cutting table (201) and cuts the continuous U-shaped paper corner protectors (8) into U-shaped paper corner protectors (8) of fixed length; A cutting opening (203) is provided on the cutting machine (202) for placing the U-shaped paper corner protector (8).

9. A high-speed CNC paper corner protection machine according to claim 8, characterized in that: The bundling unit comprises: A third conveyor belt (701) is placed in cooperation with the second conveyor belt (102) to ensure the conveying state of the U-shaped paper corner protector (8); The bundling mechanism (702) is arranged on the third conveyor belt (701) to bundle the two U-shaped paper corner protectors (8) that are crossed and overlapped.

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